Vulnerability Description
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://go.dev/cl/807100
- https://go.dev/issue/80435
- https://groups.google.com/g/golang-announce/c/94pEornpRlI
- https://pkg.go.dev/vuln/GO-2026-6091
FAQ
What is CVE-2026-56858?
CVE-2026-56858 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
How severe is CVE-2026-56858?
CVE-2026-56858 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56858?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.